* {
    font-family: 'Microsoft Yahei';
}

body {
    background-color: #ccc;
}

h1 {
    background-color: yellowgreen;
}

h2 {
    background-color: lightblue;
}

h3 {
    background-color: lightcoral;
}

.col-xs-2 {
    height: 50px;
    background-color: lightsalmon;
}

.test {
    height: 70px;
}